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Showing 1–2 of 2 results
Advanced filters: Author: Peeter Somelar Clear advanced filters

  • The first known phosphorus-rich deposits formed 2 billion years ago, but their origins are unclear. Geochemical and palaeontological analyses of 2-billion-year-old deposits from northwest Russia suggest that the presence of sulphur-oxidizing bacteria and a sharp oxic–anoxic transition in the sediments allowed for phosphorus accumulation in this setting.

    • Aivo Lepland
    • Lauri Joosu
    • Anja Schreiber
    Research
    Nature Geoscience
    Volume: 7, P: 20-24

  • Expanded phosphorus availability possibly triggered a marine bioproduction boom after 2.3 billion years ago, but its delivery mechanisms remain unclear. Here we propose a kaolinite shuttle which efficiently adsorbs phosphorus in continental weathering settings and releases it under marine conditions.

    • Weiduo Hao
    • Kaarel Mänd
    • Kurt O. Konhauser
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-6